Index

Without the fan and mounting mechanism, the Hyper 612S weighs in at 806 grams, which is about average for a high-end CPU air cooler. Heatsink is 163mm tall, meaning that you should check whether it will fit in your case. The heatsink is 136mm wide, and 100mm thick (measured without the fan).

The fan (A12025-13CB-3BN-F1, DC12V, 0.16A) comes strapped on the cooler, as the picture above shows. Its speed is fixed at 1300 rpm (+-10%) or 900 rpm if you opt on the quiet mode.

Those who like to hold reigns when it comes to controlling fan speed, or wish to leave it to the chipset, Cooler Master has an identical version but with PWM fan dubbed the Hyper 612PWM. PWM fan goes from 600 rpm to 2000 rpm, depending on the need.

Heatpipe placement is a bit out of the ordinary. Namely, Cooler Master placed them horizontally, instead of the more popular vertical placement.

The fan is fixed to the plastic bracket with screws (picture below), where the bracket can be easily removed and mounted again. Users also get another bracket for an optional fan, as well as grommets, which should help with suppressing vibration noise.

Cooler Master made sure to use every inch of free space to increase dissipation surface, which is why they used a smaller heatsink between the large one and the base of the cooler.

The large heatsink is pretty massive and wide, which is why the aluminum fins are spaced apart somewhat more than usual (2.4mm). This is especially important when the fan is set to run at 900 rpm or when users opt on semi-passive operation.

In order to prevent heat building up in the central part of the cooler, there are a few ventilation channels starting on the bottom and going towards the top. You won’t see the channels until you remove the two topmost aluminum fins.